Development of ProtoPol: a medium resolution echelle spectro-polarimeter for PRL 1.2m and 2.5m telescopes, Mt Abu, India

Mudit K. Srivastava; Arijit Maiti; Vipin Kumar; Bhaveshkumar Mistry; Ankita Patel; Vaibhav Dixit; Kevikumar Lad

doi:10.1117/12.3017932

18 July 2024 Development of ProtoPol: a medium resolution echelle spectro-polarimeter for PRL 1.2m and 2.5m telescopes, Mt Abu, India

Mudit K. Srivastava, Arijit Maiti, Vipin Kumar, Bhaveshkumar Mistry, Ankita Patel, Vaibhav Dixit, Kevikumar Lad

Author Affiliations +

Proceedings Volume 13096, Ground-based and Airborne Instrumentation for Astronomy X; 130961V (2024) https://doi.org/10.1117/12.3017932
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

ProtoPol is a medium-resolution echelle spectro-polarimeter initially conceived as a prototype instrument of the currently under development M-FOSC-EP (Mt. Abu Faint Object Spectrograph and Camera-Echelle Polarimeter) instrument - a two-channel multimode instrument which is currently being designed for PRL 1.2m and 2.5m telescopes at Mt. Abu. Though ProtoPol was initially conceived to evaluate the development methodology of M-FOSC-EP with commercially available off-the-shelf components, it was later elevated to the level of a full-fledged back-end instrument for PRL telescopes. ProtoPol was designed on the concept of echelle and cross-disperser gratings to record the cross-dispersed spectra in the wavelength range from 390 to 940 nm with a resolution (λ/δλ) in the range of 7000-8000. ProtoPol has been successfully developed and commissioned on PRL 1.2m and 2.5m telescopes since December 2023, and a variety of observations are being carried out for instrument characterization and scientific purposes. The design and development methodology of ProtoPol with complete off-the-shelf components offers a cost-effective way to develop spectro-polarimeters with such resolutions for small aperture (2-3m) telescopes around the world with a shorter development period.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Mudit K. Srivastava, Arijit Maiti, Vipin Kumar, Bhaveshkumar Mistry, Ankita Patel, Vaibhav Dixit, and Kevikumar Lad "Development of ProtoPol: a medium resolution echelle spectro-polarimeter for PRL 1.2m and 2.5m telescopes, Mt Abu, India", Proc. SPIE 13096, Ground-based and Airborne Instrumentation for Astronomy X, 130961V (18 July 2024); https://doi.org/10.1117/12.3017932

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